Denver's Hardiness Zone
Our records indicate the United States Department of Agriculture has given Denver a growing zone designation of 6a. Sometimes also called the planting zone or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Denver's climate. If you are looking for plants suitable for growing in the Denver area, head on over to our page on plants that grow well in Denver, CO.


Large Greenhouse Kit

Deluxe Plastic Watering Can

Hoeing Ain't Easy Garden Sign

Worm Composting Kit

Metal Arbor Trellis
Understanding your growing zone is very important because it is a measure of the lowest temperature that a plant can survive, helping you to decide what plants would grow best in your particular climate. Since Denver is in growing zone 6a this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Denver's climate should be chosen with this in mind or plants should be moved inside to keep their core temperature in the right range if necessary.
USDA Growing Zone: 6a
Zip Codes: 80264, 80266, 80230, 80231, 80236, 80237, 80235, 80238, 80239, 80123, 80249, 80247, 80246, 80290, 80293, 80294, 80218, 80210, 80212, 80216, 80221, 80220, 80223, 80222, 80224, 80227, 80219, 80211, 80209, 80207, 80206, 80205, 80204, 80202, 80203, 80208, 80217, 80243, 80248, 80250, 80256, 80257, 80259, 80261, 80265, 80271, 80273, 80274, 80281, 80291, 80299
Longitude: -104.8758
Latitude: 39.762
Lowest Avg Temperatures (F): -10 to -5

Metal Arbor Trellis

Reusable Grow Bags

Cluck Around Sign

Hydroponic Garden Grow Kit
